Why would overwriting the CDSs during a CDS backup be a problem? You still have the media they were restored from and can recreate that version at will.
If you don't want to run a special ARCCMDxx and you don't want to issue the FIXCDS command manually, what other approach did you have in mind? > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On > Behalf Of Gibney, Dave > Sent: Monday, February 04, 2019 3:19 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: DFHSM FIXCDS before start-up? > > I am refining our DR procedures. After I restore the DFHSM CDSs from the most > recent back-up, I need to update so as to not overwrite that back-up with the next > occurrence of CDS backup. The fine manual says to use FIXCDS S MHCR > PATCH(X'B1' nnnnnnn) to set the next back-up number. > FIXCDS requires an active DFHSM. Is there a supported way to make this update > BEFORE starting DFHSM on the recovered system? > > I have thought of running DFHSM itself with a specifically tailored parm to come up, > FIXCDS, and stop, but this seems overkill. I can also do it "manually" during the steps > documented for first IPL of recovered system, but this is more prone to error or > omission. S DFHSM is in my COMMNDxx parmlib member. > > Dave Gibney > Information Technology Services > Washington State University > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN